swift 笔记：iOS与JavaScript的交互（三）：WKWebView 3. WKUiDelegate - 4 - 1 loadUserScrip（）

Posted 2021-05-19

func loadUserScript(with path: String) -> WKUserScript {
  let filePath = Bundle.main.path(
    forResource: path, 
    ofType: "js"
  )
  var script:String?

  do {
    script = try String(
      contentsOfFile: filePath!, 
      encoding: String.Encoding.utf8
    )
  }
  catch { 
     print("Cannot Load File") 
  }

  return WKUserScript(
    source: script!,
    injectionTime: .atDocumentEnd,
    forMainFrameOnly: true
  )
}